Abstract :
With the development of the two-filament headlight lamp, as illustrated in Fig. 1, the art of motor-vehicle lighting has advanced a step in the solution of the glare evil. Several new equipments which have been designed for its use, have recently been granted the necessary State approval required before a new headlighting device may be generally applied. Furthermore, several automobile manufacturers have supplied their new cars with headlight equipment which uses the two-filament lamp.
